Cfolder Implemetation

Hello,

I am new to this C-folder, So plz guide me to meet the following requirement.

We are having SAP-SRM 4.0 with Classic Scenario. It has ECC 6 as a backend system. We are having SAP-PLM also, Now the business wants to use C-folder functionality for sharing the documents espl. Designs with Supplier.

So, Could you please help me in implementing the C-folder.

Following are my doubts.

What is C-folder?

Is it the standard functionality of ECC6/ SRM/PLM?

What all business scenarios are there like for Competitive n collaborative?

What all business process it has?

How to go ahead with implementing the c-folder for sharing PLM drawings through SRM?